Open-hearth furnace.



P. WHEELER.

HEARTH FU NACE.

0N FILED FEB. 21, 1916.

Patented June 27, 1916.

2 SHEETSSHEET 2.

B. P. WHEELER.

OPEN HEARTH FURNACE.

APPLICATION FILED FEB. 21.1916.

Patented June 27, 1916.

2 SHEETS-SHEET 1.

is the hearth and 5 the tap hole. the back wall, preferably adjacent to the tap mTEn STATES ranm clarion BRADLEY P. WHEELER, 0F DULUTH, MINNESOTA, ASSIGNOR OF ONE-HALF TO THOMAS S. BLAIR, JR., OF CHICAGO, ILLINOIS.

OPEN-HEARTH FURNACE.

Specification of Letters Patent.

Patented June 27, 1916.

Application filed Februa? 21, 1916. Serial No. 79,722

To all whom it may concern Be it known that I, BRADLEY P. WHEELER, a citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota, have invented a new and useful Improvement in Open-Hearth Furnaces, of which the following is a specification.

My invention relates to certain new and useful improvements in open hearth furnaces and is fully described and explained in the'specification and shown in the accompanying drawings, in which:

Figure 1 is a back view of a part of an, open hearth furnace showing my finals melting compartment in elevation, and Fig. 2 is a transverse section on the line 2 of Fig. 1 through the said compartment.

Referring to the drawings, 3 is the back wall of an open hearth furnace of which 4 'Against hole is a chamber 6 opento the interior of the furnace. This compartment has a melting hearth 7 and tap hole 8 and is closed by a door 9.

In use the finals are charged into this chamber and are melted there by the heat of the furnace. Thus when the heat isfinished and ready to be tapped, the finals, such as spiegel, manganese, ferro-chronium, ferronickel, etc, are all ready for use and can be tapped ofl" at once and addedto the heat. There is thus no need for any specialmelting of the finals and no delay caused by their preparation.

I realize that considerable variation is possible in the details of this construction Without departing from the spirit of my invention; therefore I do not intend to limit myself to the specific form herein shown and described except as pointed out in the following claim, in which it is my intention to claim all the novelty inherent in the construction as broadly as is permitted by 'the state of the art.

What I claim as new and desire to secure by Letters Patent is open hearth furnace havinga main combustion chamber provided with a tap hole and an auxiliary finals melting chamber located adjacent to the tap hole of the main chamber, opento the main chamber and heated thereby, said auxiliary chamber having a hearth to receive the finals to be melted and provided with a tap hole adjacent the tap hole of the main chamber.

BRADLEY P. WHEELER. In presence of two subscribing witnesses:

THos. T. BLAROF, C. B. MOLAMPHY. 

